Applied Mechanics and Materials Vols. 644-650

Abstract: In large scale network, the problem that network in an area topology accurately be discovered should be solved. The traditional network discovery algorithms mainly use ICMP and SNMP. But these two algorithms allow routers or other devices to send request packets to other devices. It may cause the low utilization rate of network. However, OSPF routing protocol, when it exchange routing tables, it will send LSUs to other routers and receive them from the remote routers. According to analyzing the LSAs, which are encapsulated in LSUs, we can obtain the network topology. We use GNS3 to simulate OSPF environment. Experiment shows that this algorithm can obtain the network topology rapidly and accurately.

Abstract: This paper has presented a cloud-based mobile telemedicine consultation system for tele-consultation. The cloud-based infrastructure is used for clinical information share between medical institutions during tele-consultation; Web services based on encrypted and compressed XML are used for interoperability and privacy of patient’s information. Consulting physicians can accomplish the medical consultation just by using an iPad which running the proposed system. Practical using showed that the system is feasible and efficient enough to apply in tele-consultation.

Abstract: Digital library is a development direction of library, which has attracted the attention of the countries around the world widely. Digital library is an important part of informationization in university. As an information system, digital library is the backbone of the digital library information resources; the safety of library digital information resources is the key to the normal operation and development of digital library, which is also the guarantee for library to service. How to guarantee the security of information resources and the information system in open network environment has been considered by many people in the industry, the digital library information security has become one of core issues in digital library construction and development.

Abstract: The paper developed an information management system of metrological evaluation based on the SSH framework, in order to further standardize the information management of evaluators, and a more stable and accurate information management of evaluation tasks and evaluators, also improves the working quality and efficiency of management center. The more important is making the assignment of evaluators open and objective. This information management system is based on the SSH J2EE platform application framework, in combination with the use of the MySQL database, it adopts JAVA programming technique and B/S development mode. The information management system of evaluation has realized the function of the adding, deleting, revising and querying of information of evaluators and evaluation tasks. In addition, it also has realized an objective and automatic selection of evaluators, which effectively improves the quality and efficiency of management center.

Abstract: This paper mainly introduces how to design an upper computer interface for two-dimensional turntable under the environment of VS2010 using MFC, in order to provide a comfortable and easy operating environment for user. These technology are amply analyzed such as the serial communication, the curve drawing of motor speed, the display of hand wheel schematic. The PC software has the function of management and control of the two-dimensional turntable which is verified by experiments.

Abstract: When HDFS runs for a period of time, the default HDFS replica placement strategy does not consider heterogeneous nodes and randomly selectes datanodes, so available storage space of each datanode are differenced from several G to tens of G range, HDFS may have some available storage space smaller datanode. If HDFS continues to write replica in these available storage space smaller datanodes,it may cause the failure of replica placement; These nodes run MapReduce tasks, MapReduce task may fail due to smaller storage space available. Therefore, this paper proposes an Available storage space sensitive replica placement strategy of HDFS,this strategy uses available storage space and current number of connections of per datanode to compute evaluation value, then chooses the biggest evaluation value datanode as the best datanode to place replica. The experimental results show that the strategy achieves placing replica in accordance with available storage space of datanode, effectively avoiding the available storage space smaller datanode, reducing the probability of writing replica failed because the available storage space is too small, shorten the file upload time.

Abstract: In this paper, we present personalized routes recommendation on Location Based Social Network. We model user in both geographical space and semantic space, and define Activity Pattern to describe individual’s personalized character, i.e. individual’s activity regularity. We extract routes which match individual’s activity patterns from high similar users’ trajectories, and according to scoring strategy to recommend top-k routes to a user. We evaluated our method with a real GPS dataset collected from GeoLife. The results show that there exist Activity Pattern in individual’s movement, and our method is better than traditional Cosine-based Similarity method on both precision and k-cover.

Abstract: Two intelligent models for creative thinking, which are conceptual restructuring and space exploration, are studied based on artificial intelligent and cognitive psychology. The characteristics of the models and their applications are analyzed. A human-computer collaborative creative model is presented, which combines the nonlogical creation typified by conceptual restructuring, and logic creation typified by space exploration on the basis of visualization. The human-computer collaborative model for product creative design is also proposed, and the key technologies for realizing the human-computer collaboration for creative design are provided. A prototype system of car body design is developed to testify the effectiveness of the proposed method.

Abstract: This paper focuses on the application of cloud manufacturing technology in the development of digital intelligent production control platform. Combined with the characteristics of NC machine shop, using the cloud manufacturing technology, the intelligent scheduling of production plan based on the theory of constraints, and multi-objective scheduling optimization technology, developed the target task balance optimization, manufacturing resource planning, equipment load balance module etc., achieved tracking and monitoring of the status of schedule, completion, production etc., ensure the statistics and analysis of production data correct and complete, and provide the basis for evaluation of production condition.

Abstract: According to the problem that the current deployment methods and tools lead to complex control of software version, simple and repeated labor, and low work efficiency for the distributed software system containing a variety of applications deployed and upgraded on computers of different hardware configurations and operating systems, a remote and unified software automated deployment platform is designed by studying software automated deployment platform and key techniques of software information description language, software intelligent deployment algorithm and multi-agent communication mechanism. The experiment shows that the deployment platform can automatically detect software deployment conflicts, adjust conflicts, make collaborative decisions of software deployment, realize the unified and intelligent deployment at last.